The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2025
Filed:
Jan. 04, 2024
Applicant:
Ihi Corporation, Tokyo, JP;
Inventor:
Seiei Masuda, Tokyo, JP;
Assignee:
IHI Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G05D 16/10 (2006.01); F16K 11/07 (2006.01); F16K 47/02 (2006.01);
U.S. Cl.
CPC ...
G05D 16/101 (2019.01); F16K 11/0712 (2013.01); F16K 47/023 (2013.01);
Abstract
A spool valve () includes: a sleeve () extending in an axial direction thereof, including an inlet port () and an outlet port for working fluid; a spool () movably housed in the sleeve () in the axial direction; a biasing device () including a spring () as a biasing member configured to press a base end () of the spool () toward a tip end () of the spool (); and a pressure detecting port () for the working fluid, opening toward the tip end () of the spool (). The outlet port () is constituted of slits (), and the slits () are arranged at intervals in the circumferential direction of the sleeve () and extended in the axial direction.